Ubuntu Servers :: Nullmailer Relay Through The Postfix?
Feb 21, 2011
I currently have a postfix / dovecot server running on one ubuntu server with nullmailer relaying webmail on a different server. This is currently working except the mail server is rejecting incorrect addresses which results in the messages being stuck in the nullmailer queue on the webmail server. Is it possible to force postfix to accept and manage all relayed messages from webmail, or is it possible for the nullmailer to manage the bounced messages correctly?
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Jan 26, 2010
I've search high and low.. does anyone know how to configure Postfix/Dovecot to use another SMTP server (i.e. smtp.comcast.net) as my ISP blocks port 25?
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Mar 1, 2011
I have a mail server running Postfix and the problem I'm running into is that when trying to send mail, I get a "relay access denied" error.Inside my main.cf, I did not specify 'smtpd_recipient_restrictions' so by default, the variable is:
Code:
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
The 'mynetworks' variable looks like this:
[code]....
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Jul 17, 2011
I'm trying to setup postfix (or exim, I don't mind which), so I can move away my last remaining PC from Windows.I've tinkered with Postfix for good part of a month and I can get it to accept emails using SMTP and post them to a virtual mailbox based on MySQL tables. And it rejects mail addressed to local email addresses that it can't find in the table.
First question (or problem.) I've set up Postfix to relay email it cannot deliver locally such as is the case when you send out an email. My remote host requires authentication. How can I set this up?
Second question: I want to force my clients to use either AUTH, TLS or SSL, and not allow anonymous connections (to prevent an open relay server.) How do I set that up without interfering with the smarthost setting? The smarthost login is not one of my clients, it's a pre-determined login and password that is solely used for the email relaying aspect.
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Jul 2, 2010
My postfix is ok with receiving emails but i can send mail to my domain only [URL] When I want to send to other domains i receive this error (in the maillog):
Quote:
postfix/smtpd[14172]: NOQUEUE: reject: RCPT from 93-46-46-73.ip106.fastwebnet.it[93.46.46.73]: 554 5.7.1 <giannileggio@shoppeo.com>: Relay access denied; from=<info@sampledomain.com> to=<giannileggio@shoppeo.com> proto=ESMTP helo=<[36.234.52.97]>
it is the same via thunderbird or via telnet. This is my configuration
Quote:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
[code]....
I used 'sampledomain' instead of my real domain
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Apr 29, 2011
My issue is that i'm trying to send emails with postfix and gmail as the mail relay,i'm trying to send emails to my self by sendmail -bv user@gmail.com
In the logs, i can understand that it been delivered to the destination,
taken from: /var/log/mail.log:
Apr 30 00:05:23 moni postfix/pickup[10490]: 9C7552170C: uid=0 from=<root>
Apr 30 00:05:23 moni postfix/cleanup[10495]: 9C7552170C: message-id=<20110429210523.9C7552170C@moni.localdomain>
Apr 30 00:05:23 moni postfix/qmgr[10491]: 9C7552170C: from=<root@moni.localdomain>, size=283, nrcpt=1 (queue active)
code....
When login in my gmail account i can't see nothing under the sent / inbox / spam folder.
it's seems like the mail are been sent.. but nothing is happening.
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Jul 3, 2010
i have been working on setting up an email server over a ddns. All seems to be working (i can email me@my_ddns_domain.com to me@my_ddns_domain.com) except that when i try and send to another email address (some_other_me@other_host.com) i get the error "5.7.1 Relay access denied". The way i tested this is as follows:
Code:
me@my_ddns_domain:~/$ netcat my_ddns_domain.com 25
220 my_ddns_domain.com ESMTP Postfix (Ubuntu)
ehlo localhost
250-my_ddns_domain
250-PIPELINING
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Feb 19, 2011
I'm trying to use different MTA servers (one for each domain) on the same public IP and port (25). Here I attach a graphic of my idea, to have a Postfix server that receives all incoming mail from internet, and relays to different local servers. esquema_mta-dns.jpg How can be configured the "Relayer MTA" ?
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Jan 12, 2011
The scenario: We have an external server that runs HTTP/DB servers for out shop system. Then, there's our local, in-house infrastructure that runs a.. yeah... Exchange 2010. The shop system on the external server needs to send mails to customers (order confirmations, invoices, etc.). seing as sending them directly through the local MTA (Postfix) would cause mail delivery problems because of reverse DNS issues, i've set the Postfix MTA to act as a satellite to our in-house Exchange Server, so the Exchange sends the mail instead, giving recipient mail servers a valid reverse DNS lookup.
Now, mails sent by the (proprietary, uneditable) shop system are relayed correctly and sent to the target e-mail address. My problem is: Mails not sent by the shop system, but by our own PHP scripts which run on that same external servers, are NOT relayed properly. So the Exchange is fine with the mails sent by the shop system, but not the mails sent by our scripts. This is what i get in the mail.log: The successfully relayed mail sent by the shop system:
[Code]....
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Aug 6, 2010
Two exchange servers internally. One is setup for example.com (192.168.1.10) and the other is setup for example2.com (192.168.1.20) Both are behind a single public IP.
I want to use postfix to sit in front of the two exchange servers. Postfix will accept mail for both domains and relay to the appropriate server. I have postfix installed with only defaults at this point.
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May 19, 2010
I installed nullmailer on our server so we can push mails out using an external mail server.However getting the following messages in syslog
Code:
May 19 22:55:04 <hostname> nullmailer[12435]: Rescanning queue.
May 19 22:55:04 <hostname> nullmailer[12435]: Starting delivery: protocol: smtp host:
[code]....
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Jun 3, 2010
When attempting to check my postfix install by using telnet to send an email to an address outside my local network, I get a relay access denied error.
This is how I attempted to send an email
Code:
telnet my_server 25
helo my_server
mail from: me@my_server
rcpt to: me@gmail.com
[Code].....
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Jun 4, 2011
I was never confident with postfix, but used it for several years now on my own server. I even noted the exact config used. But my old server crashed and I have to build fast a news one and I don't receive mails anymore. Here is the log message when trying to send to me from gmail:
Jun 4 08:06:34 ks3095514 postfix/smtpd[4008]: connect from mail-pw0-f50.google.com[209.85.160.50]
Jun 4 08:06:34 ks3095514 postfix/smtpd[4008]: NOQUEUE: reject: RCPT from mail-pw0-f50.google.com[209.85.160.50]: 554 5.7.1 <jdd@dodin.net>: Relay access denied; from=<lesrevesdeness@gmail.com> to=<jdd@dodin.net> proto=ESMTP helo=<mail-pw0-f50.google.com>
Jun 4 08:06:35 ks3095514 postfix/smtpd[4008]: disconnect from mail-pw0-f50.google.com[209.85.160.50]
The main.cf file is the openSUSE default one (see below). Part of my problems seems to come from the reverse. I *could once* receive one test messsage to " ks3095514.kimsufi.com" (the default reverse/domain name) (below, commented out), but not for my own domain (dodin.org). Most of the time the only necessary lines are mydomain, myhostname, myorigin and mydestination, but this don't work anymore. New defaults??. local (from and to the server) mail works, root can send to jdd and I read it from home.
mydomain = dodin.org
inet_protocols = all
biff = no
mail_spool_directory = /var/mail
canonical_maps = hash:/etc/postfix/canonical
virtual_alias_domains = hash:/etc/postfix/virtual
relocated_maps = hash:/etc/postfix/relocated
transport_maps = hash:/etc/postfix/transport
sender_canonical_maps = hash:/etc/postfix/sender_canonical
masquerade_exceptions = root .....
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Mar 11, 2010
Here is what i do: make clean make makefiles CCARGS='-DEF_CONFIG_DIR="/opt/product/postfix-2.6.5/etc"
-DEF_COMMAND_DIR="/opt/product/postfix-2.6.5"
-DEF_DAEMON_DIR="/opt/product/postfix-2.6.5/libexec"
-DEF_MAILQ_PATH="/opt/product/postfix-2.6.5/bin/mailq"
-DEF_DATA_DIR="/opt/product/postfix-2.6.5/lib"
-DEF_NEWALIAS_DIR="/opt/product/postfix-2.6.5/bin/newaliases"
[Code]...
make install then i got this error: postfix: fatal: chdir(/usr/libexec/postfix): No such file or directory make: *** [install] Error 1 I don't understand why it's checking the usr/libexec folder for the daemons although I've set the folder to /opt/product/postfix-2.6.5/libexec in the makefile. Here is also the cat of my makedefs.out:
[Code]....
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Jun 12, 2011
Has anyone managed to get postfix working using virgin media as a relay?
is there any alternative if thats my ISP? they wont give out static IP
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Jul 27, 2009
I have a linux box on my DMZ with postfix on it. I have exchange on our internal LAN on 10.152.0.104.
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May 25, 2010
Some mail coming to my postfix server will need to be delivered local and the rest to an internal mail server.
The internal mail server is mail.example.com where there is no bob@example.com but there is a sam@example.com.
Is it possible to configure postfix to do this?
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Mar 23, 2010
I just finish install & setup postfix & spamassasin. I can send & received email from my local area network. i already install webmail client & I can send received. When using my pda from outside my network I can received but I just can send email to my domain only. For other domain it's error relay access denied. Here my postfix configuration.
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Mar 21, 2011
distro = debian 5
when i tried to send to other domain, i will get "Relay access denied"
below are my configs
main.cf
Code:
# postconf -n
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
[Code].....
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Dec 17, 2010
I have setup up an Opensuse as a simple we/application server.It handles requests for various things and will need to send out email on occasion for things like password reset requests, information / warnings etc. etc.This is a standard OPenSuse 11.x install with defaults so it comes with Postfix as the mta.I do not want a mail server I just want to send out via my clients mail server which is hosted exchange rackspace, which simply requires SMTP auth to do so.What would be the proper way to do this so ALL e-mail send from this machine, regardless of account like WWWRun or when logged in and sending from the command line has the same sender all the time.
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Feb 11, 2011
I'm trying to set up my postfix server to relay mail (via a php cms) using Gmail's smtp on my account, but for some reason, Gmail returns an error code that StartTLS must be sent first, my postfix main.cnf file can be found at pastebin, because of this forum's text length I cannot paste my postfix main.cnf file as can be seen I have everything set and configured for Gmail, but postfix (for some unseen reason) can not send StartTLS. [URL].
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May 13, 2011
I'm using Ubuntu Server 10.04 and I can successfully relay mail generated by php scripts through an Exchange server.What I want to do is accept incoming mail from the Internet through postfix and relay it to the Exchange server but I want all mail that is not addressed to ...@mydomain.edu to be discarded.
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Jan 20, 2010
I got a weird postfix setup question? This is a separate server to the one I posted about earlier today.
I need to setup a postfix server which will accept emails for local know address (full addresses) and deliver them straight to the users maildir.
Any unknown addresses (however for the same domain), needs to be relayed to another server.
This is a bit of a special setup as there is no fixed Internet connection to the server. So the plan is that local email get delivered straight away whilst emails to the same @domain, but that doesn't exist in the user tables get put in the hold queue and is later relayed to server number 2 when a connection is available.
I am using mysql to retrieve all my settings into postfix.
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Oct 6, 2009
I would like to setup postfix to act as a relay for the outgoing mails of a couple of servers each serving it's own domain.The mails we are talking about are standard administrative emails like user registration, password reset request. The volume of those mails will naturally grow as the site grows. Which for me poses the problem that depending on the growth of the site you will sooner or later hit the quotas imposed by (my otherwise preferred) providers like GMail or smtp.com.
So what I need is a mail relay that will only accept mails from authenticated clients from hosts in its access list and relay their mail without restrictions. Is that possible with postfix? What has to be changed in the config and what are the pitfalls?
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Jan 24, 2010
my server is Redhat as 5 + postfix +Dovecot .when i use smtp to send mail，it can't to send,the system return "relay access denied" ? This is my maini.cf
Code:
# Global Postfix configuration file. This file lists only a subset
# of all parameters. For the syntax, and for a complete parameter
# list, see the postconf(5) manual page (command: "man 5 postconf").
#
# For common configuration examples, see BASIC_CONFIGURATION_README
[Code].....
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Jul 25, 2011
For about a week now I've been seeing mass attempts to relay through postfix and login to dovecot from the same 2 addresses, none are successful due to how postfix/dovecot are configured and I wouldn't be overly worried but my isp have picked up on it and are nagging at me
What ways do people go about just dropping connection attempts from offending addresses/ranges when stuff like that happens? An ideal thing would be something that detects repeated failed attempts from a host or range and subsequently ignore/ban them, perhaps for a specified length of time, something along the lines of denyhosts and fail2ban for ssh would be great Don't know if there's anything out there or just a plain tried and trusted method anyone might use for stuff like this, if not a hint on the most appropriate way to go about it 'manually' would do
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Apr 24, 2011
i need to configure postfix on centos to relay email from the internet to the Exchange Server and i also need that emails sent from the exchange within the same domain be sent to postfix then resent to exchange because i have spamassassin and clamav installed on centos to filter all incoming and outgoing mails ...
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Jul 9, 2010
Setup an Ubuntu LAMP server to house a Wordpress site. Everything is gravy but I am having some troubles getting emails to route outside my local network. I have setup Internet and also added my ISP SMTP as a smarthost - either way I get the dreaded Relay Access Denied 5.7.1.
I am using DynDns as I do not have a static IP - not sure if this makes a difference?
telnet my_dyn_dns.org 25
ehlo localhost
250-my_dyn_dns.org
250-PIPELINING
250-SIZE 10240000
[Code]....
I have also tried the above with my ISP smtp IP in relayhost - same error.
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Jun 15, 2010
I am new to the Ubuntu Community and just starting to build my Ubuntu 10.04 Server. I am a novice in Ubuntu, though maybe not a full n00b any more
I travel around a lot with my laptop, (also Ubuntu 10.04). However, my ISP does not allow me to send email via their SMTP when I am not in their IP range.
Since I have this little server I am building, I thought it would be nice if I could have my own SMTP relay. The objectives would be simple:
- I do not need a mailbox or POP server (yet).
- I wish to send email from any place in the world. I can not use a filter on IP ranges or local networks only.
- If my server could do this, I just configure Evolution on my laptop to send mail to my home IP address, using some sort of authentication and/or security/encryption (whichever is easy to implement).
- My server then just forwards my mail to my ISP. Since the server is inside the IP range, it can be handled as usual.
I have been digging through several howto's and the ubuntu server guide, searching some forums etc. Even while I don't fully grasp the things explained, I can't get the idea that one of those is "Just what I need".
Even still, if there is some other service outside my own that can do this (a public SMTP relay maybe?) I would also be happy to consider as long as it is safe and does not "eavesdrop" on my messages.
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Aug 18, 2010
I have setup my own home server . All the applications are working perfectly except one I can't send Emails. I check weda my smtp has any errors not welll I got this
Code:
SMTP -> FROM SERVER:
220 server1.example.com ESMTP Postfix (Ubuntu)
SMTP -> FROM SERVER:
[code]....
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